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Description: Most industrial motors require AC (alternating current) voltage whose polarity oscillates 60 times a second (for a frequency of 60 Hertz) between positive and negative. Single phase AC motors have brushes just like DC motors. Most of them have capacitors to assist starting and to establish the direction of rotation. Changing direction implies changes in the capacitors’ connection. Speed is directly proportional to the applied voltage (just like DC motors). Usage is restricted to low-power uses (home appliances like vacuum cleaners, washing machines, coffee grinders, or power tools like rotary hammers etc.). For higher power requirements, three-phase AC motors are used. These do not have carbon brushes to wear out, their rotors (called squirrel cages) have no electrical connections, thus making them extremely robust and long-lived. Only the stator windings are connected to the power line. They just keep turning as long as their ball bearings are OK. Changing direction requires swapping any two of the three phase lines. Speed control is done by modifying the frequency of the AC delivered to the motor; this can be done using complex devices called AC drives.
Item ID
Item
Price
Quantity
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#2840480
BALDOR EMVM13226C-PP M3BP 132SMC 6P B14 2.2KW :
Brand Baldor
Model EMVM13226C-PP
$836.00 Each
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#2984097
$1,363.67 Each
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#39427
BOSTON 19182 HUTB-5/8-B 1HP 230/460 BR 56 AC MOTOR
Brand Boston Gear
Model HUTB-5/8-B
$916.74 Each
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#39471
BOSTON 50427 HU-5/8-B 1HP AC MOTOR 230/460 ODP
Brand Boston Gear
Model HU-5/8-B
$329.19 Each
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#39596
$326.74 Each
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#39695
BOSTON 66139 GR-B 3/4H 115/230V1 AC MOTOR
Brand Boston Gear
Model GR-B
$383.26 Each
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#39754
BOSTON 66388 GRB-B 3/4H 115/230V1 AC MOTOR
Brand Boston Gear
Model GRB-B
$976.74 Each
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#39777
BOSTON 66474 LUTFB-B 3H 230/460V3 AC MOTOR
Brand Boston Gear
Model LUTFB-B
$1,638.60 Each
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$730.75 Each
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$508.06 Each
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